ok, not really "DIY" as i am taking my trailer into a place to get some other things done and wanted to get theroof in the  horse area insulated.  I am not sure this place has done this "procedure" before (the main trailer guy is on vacation)...but any other work they have done for me has been done well, so i would like to use them for this job. 

 i am hoping someone on this forum has either done this themselves or can direct me to some site so I can see exactly how this is done and the materials used , etc.  (i have searched this forum but didn't have any luck regarding horse area roof insulation...         thanks!

There used to be several threads - maybe they aged out of the system.  Anyway, we looked at those, and did what it said - got the insulation at Home Depot, measured and cut the pieces and wedged them in.  The posts called for welding an aluminum strip to hold them in, but we got the silver AC duct tape (doesn't let loose because it gets wet) and used that and it looks great.  Took about $30 and an afternoon.  Cooled the trailer down about 10-15 degrees (I have an indoor/outdoor thermometer in the LQ).  Do it and add fans. 

So what material is this exactly?  I am interested in knowing and can this be done with a steel trailer and help with cooling it down? 

Thanks!

I looked and we don't have any left out there, but I'm sure there are several brands.  It's about 1/2 to 3/4 inch thick, stiff insulation board and came in sheets maybe 4 feet by 8 feet or a little less.  Has a shiny aluminum coating on one side at least.  Sorry I don't have the name, but it's all on the roof.  I need to get some more as I have a couple of small spots left to do.  Hope that helps.  In the areas that are curved, it wrinkles some, but still looks OK.

It is generically called "foil faced foam insulation board". Each company has its own brand name. It is available in most big box stores and lumber yards in 4x8' and 4x12' sheets.

The thicker the insulation, 3/4" and 1", the less able it is to bend. If you have a tight radius, scoring the backside (the side away from the interior)several times with a utility knife, will allow the foam board to flex. This will eliminate an interior seam and keep the aluminum membrane intact. The thinner 1/2" bends much easier, but offers less insulation.

Polyurethane construction adhesive will also glue it to most clean metals.

Gard

There is little or no condensation because the center of the foam board is insulated. Warm interior air will not directly contact the cool trailer's skin, so no moisture will form.

Your head will be warm and dry in the morning

Gard

So you can put this foil faced insulation board in the horse area too? 

I had heard and also seen some blow on insulation for the horse area that is what I thought this was originally talking about. . . anyone know of that type for the hrose area only.

I have see Horse compartments that have had a spray on foam product sprayed on the inside of the roof for insulation.  I don't know what is is called but I have trailer here that has it in it.  Seems to work well and does not flake off.  If you are talking about the LQ part of the trailer we do not use any insulation board type material on the ceiling, but rather we we frame it like a house and leave a "dead air" space between the trailer roof and the ceiling.  The ceiling has a soft touch alante on it with foam backing.  This has worked very well for us and have had no complaints or problems with condensation. Here are some pictures of an lq ceiling.

http://www.trailerworldofkansas.com/?action=view&id=179

Spray foam is applied by insulation companies that do both residential and commercial properties. You should be able to find them in the "Yellow" pages under insulation.

They charge by the square foot and because a trailer would be almost insignificant, you might have to catch them at a "regular" job sight as they finish a larger project.

Gard